Upgrade Procedure - AT&T MERLIN LEGEND Release 3.0 System Programming And Maintenance Manual

Upgrading the System
NOTE:
The default barrier code and any programmed barrier codes will be carried
over to Release 3.0 with no change and the barrier code length will be four
(4). It is the responsibility of the system manager to change the barrier code
length and the barrier codes if so desired.

Upgrade Procedure

IMPORTANT:
The upgrade procedure must follow the order of the steps shown below.
1 Install SPM.
To upgrade the system to Release 3.0, you will need to install (or upgrade to)
Version 3.XX of SPM. See "Installing the SPM Software."
2 Back up your system programming.
This step creates a file containing system programming information. See
"Backup."
3 Replace the processor module.
a. Turn off the AC power switches on the control unit in the following order:
(1) Basic carrier
(2) Expansion carrier 1, if present
(3) Expansion carrier 2, if present.
b. Unplug the interface cords from the SPM and SMDR printer ports on the
processor module.
c. Remove the processor module from Slot 0.
d. Install the Release 3.0 processor module in Slot 0.
Plug the interface cords into the SPM and SMDR printer ports on the
e.
processor module.
f. Turn
on AC power to the control unit in the following order:
Expansion carrier 2, if present
(1)
(2) Expansion carrier 1, if present
Basic carrier.
(3)
66 System Programming and Maintenance (SPM)